I have a Canon CanoScan LiDE 100(b) scanner for which I'm interested in helping develop sane support. I see there was a previous email about this here:
http://lists.alioth.debian.org/pipermail/sane-devel/2008-November/023133.html I can confirm lsusb -vv is the same on my scanner (see below) and the output from sane-find-scanner -v -v is listed below. I've opened the scanner up, and the chip is actually a GL847 - picture of the whole board here: http://web.media.mit.edu/~mhirsch/canon_lide_100.jpg What's a productive next step? Would the gensys backend be expected to support this? Any ideas were to find a datasheet for this chip? Thanks, Matt ========= #lsusb -vv Bus 001 Device 026: ID 04a9:1904 Canon, Inc. Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 255 Vendor Specific Class bDeviceSubClass 255 Vendor Specific Subclass bDeviceProtocol 255 Vendor Specific Protocol bMaxPacketSize0 64 idVendor 0x04a9 Canon, Inc. idProduct 0x1904 bcdDevice 6.03 iManufacturer 1 Canon iProduct 2 CanoScan iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 39 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xa0 (Bus Powered) Remote Wakeup MaxPower 500mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 3 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 255 Vendor Specific Protocol iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0001 1x 1 bytes bInterval 8 Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 255 Vendor Specific Class bDeviceSubClass 255 Vendor Specific Subclass bDeviceProtocol 255 Vendor Specific Protocol bMaxPacketSize0 64 bNumConfigurations 1 Device Status: 0x0000 (Bus Powered) =============== /#sane-find-scanner -v -v/ <device descriptor of 0x04a9/0x1904 at 001:037 (Canon CanoScan)> bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 255 bDeviceSubClass 255 bDeviceProtocol 255 bMaxPacketSize0 64 idVendor 0x04A9 idProduct 0x1904 bcdDevice 6.03 iManufacturer 1 (Canon) iProduct 2 (CanoScan) iSerialNumber 0 () bNumConfigurations 1 <configuration 0> bLength 9 bDescriptorType 2 wTotalLength 39 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 () bmAttributes 160 (Remote Wakeup) MaxPower 500 mA <interface 0> <altsetting 0> bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 3 bInterfaceClass 255 bInterfaceSubClass 255 bInterfaceProtocol 255 iInterface 0 () <endpoint 0> bLength 7 bDescriptorType 5 bEndpointAddress 0x81 (in 0x01) bmAttributes 2 (bulk) wMaxPacketSize 512 bInterval 0 ms bRefresh 0 bSynchAddress 0 <endpoint 1> bLength 7 bDescriptorType 5 bEndpointAddress 0x02 (out 0x02) bmAttributes 2 (bulk) wMaxPacketSize 512 bInterval 0 ms bRefresh 0 bSynchAddress 0 <endpoint 2> bLength 7 bDescriptorType 5 bEndpointAddress 0x83 (in 0x03) bmAttributes 3 (interrupt) wMaxPacketSize 1 bInterval 8 ms bRefresh 0 bSynchAddress 0 <trying to find out which USB chip is used> checking for GT-6801 ... this is not a GT-6801 (bcdUSB = 0x200) checking for GT-6816 ... this is not a GT-6816 (bDeviceClass = 255, bInterfaceClass = 255) checking for GT-8911 ... this is not a GT-8911 (check 1, bDeviceClass = 255, bInterfaceClass = 255) checking for MA-1017 ... this is not a MA-1017 (bDeviceClass = 255, bInterfaceClass = 255) checking for MA-1015 ... this is not a MA-1015 (bcdUSB = 0x200) checking for MA-1509 ... this is not a MA-1509 (bcdUSB = 0x200) checking for LM983[1,2,3] ... this is not a LM983x (bcdUSB = 0x200) checking for GL646 ... this is not a GL646 (bDeviceClass = 255, bInterfaceClass = 255) checking for GL646_HP ... this is not a GL646_HP (bcdUSB = 0x200) checking for GL660+GL646 ... this is not a GL660+GL646 (bDeviceClass = 255, bInterfaceClass = 255) checking for GL84x ... <This USB chip looks like a GL843 (result from sane-backends 1.0.20)> found USB scanner (vendor=0x04a9 [Canon], product=0x1904 [CanoScan], chip=GL843) at libusb:001:037
